grimace (n.)
- ache
- ail
- anguish
- bob
- bobble
- bounce
- bump
- dither
- face
- falter
- frown
- gloom
- glower
- ham
- hurt
- jar
- jerk
- jig
- jiggle
- jog
- joggle
- jolt
- jostle
- lower
- mop
- moue
- mouth
- mow
- mug
- pound
- pout
- quake
- quaver
- quiver
- rant
- recoil
- rictus
- roar
- scowl
- shake
- shiver
- shock
- shoot
- shrink
- shudder
- smart
- snarl
- spout
- thrill
- throb
- tic
- tingle
- tremble
- tremor
- twinge
- twitch
- wince
- wobble
grimace (v.)
- ache
- agonize
- ail
- anguish
- blanch
- blench
- bob
- bobble
- bounce
- bump
- contort
- declaim
- deform
- didder
- distort
- dither
- face
- falter
- frown
- glower
- ham
- hurt
- jar
- jerk
- jig
- jiggle
- jog
- joggle
- jolt
- jostle
- lower
- mop
- mouth
- mow
- mug
- overact
- overdramatize
- pound
- pout
- quake
- quaver
- quiver
- rant
- recoil
- roar
- scowl
- shake
- shiver
- shock
- shoot
- shrink
- shudder
- smart
- snarl
- spout
- suffer
- thrill
- throb
- tic
- tingle
- tremble
- tremor
- twinge
- twitch
- underact
- wince
- wobble
- writhe